55057263 has 8 divisors (see below), whose sum is σ = 73646976. Its totient is φ = 36586200.

The previous prime is 55057259. The next prime is 55057273. The reversal of 55057263 is 36275055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55057263 - 2² = 55057259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55057253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28573 + ... + 30438.

It is an arithmetic number, because the mean of its divisors is an integer number (9205872).

Almost surely, 2^55057263 is an apocalyptic number.

55057263 is a deficient number, since it is larger than the sum of its proper divisors (18589713).

55057263 is a wasteful number, since it uses less digits than its factorization.

55057263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59325.

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 55057263 is about 7420.0581534109. The cubic root of 55057263 is about 380.4271811878.

The spelling of 55057263 in words is "fifty-five million, fifty-seven thousand, two hundred sixty-three".